<!--
 * @Author: your name
 * @Date: 2021-07-06 18:09:08
 * @LastEditTime: 2021-07-07 09:47:12
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: \vue_shop\src\components\report\Report.vue
-->
<template>
  <div>
    <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 2.为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 750px; height: 400px"></div>
    </el-card>
  </div>
</template>

<script>
// 1.导入echarts
// import echarts from 'echarts'
// 有坑
import * as echarts from 'echarts'
import _ from 'lodash'

export default {
  data() {
    return {
      // 需要合并的数据
      options: {
        title: {
          text: '用户来源',
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3',
            },
          },
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true,
        },
        xAxis: [
          {
            boundaryGap: false,
          },
        ],
        yAxis: [
          {
            type: 'value',
          },
        ],
      },
    }
  },
  created() {},
  // 此时页面上的元素已经被渲染完毕了
  async mounted() {
    // 3.基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'))

    const { data: res } = await this.$http.get(`reports/type/1`)
    if (res.meta.status !== 200) {
      return this.$message.error('获取折线图数据失败!')
    }

    // 4.准备数据和配置项
    _.merge(res.data, this.options)
    // 5.展示数据
    myChart.setOption(res.data)
  },
  methods: {},
}
</script>

<style lang="less" scoped>
</style>